Send Gpd First Data Block, Wait For Ack Response; Send The Remaining Data Blocks In Sequence And Wait For The Ack Response; Send Gpd Transfer End Statement And Wait For Response; Switch Binary Reception To Nmea Reception Mode - Ebyte E108-GN Series User Manual

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8.7.2 Send GPD first data block, wait for ACK response

Send: packet header (2B) + packet length (2B) + transmission type (2B) + GPD packet number (2B) + data payload (512B) + CheckSum
(1B) + packet tail (2B)
Data: 0xaa, 0xf0, 0x0b, 0x02, 0x066, 0x02, 0x00, 0x00, ..., (chk), 0x0d, 0a
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + GPD packet number (2B) + valid flag (1B) + CheckSum (1B) +
packet tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, (chk), 0x0d, 0x0a
8.7.3 Send the remaining data blocks in sequence and wait for the ACK
response
Send: packet header (2B) + packet length (2B) + transmission type (2B) + GPD packet number (2B) + data payload (512B) + CheckSum
(1B) + packet tail (2B)
Data: 0xaa, 0xf0, 0x0b, 0x02, 0x066, 0x02, 0x01, 0x00, ......., (chk), 0x0d, 0a
(The GPD file is divided into 512-byte data blocks for transmission, and the last block less than 512 bytes is filled with 0s)
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + GPD packet number (2B) + valid flag (1B) + CheckSum (1B) +
packet tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x03, 0x00, 0x01, 0x00, 0x01, (chk), 0x0d, 0x0a

8.7.4 Send GPD transfer end statement and wait for response

Send: packet header (2B) + packet length (2B) + transmission type (2B) + GPD terminator (2B) + CheckSum (1B) + packet tail (2B)
Data: 0xaa, 0xf0, 0x0b, 0x00, 0x066, 0x02, 0xff, 0xff, (chk), 0x0d, 0a
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + GPD terminator (2B) + valid flag (1B) + CheckSum (1B) + packet
tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x03, 0x00, 0xff, 0xff, 0x01, (chk), 0x0d, 0x0a

8.7.5 Switch BINARY reception to NMEA reception mode

Send: Packet header (2B) + Packet length (2B) + Message type (2B) + Transmission type (1B) + Baud rate (4B) + CheckSum (1B) +
Packet tail (2B)
Data: 0xaa, 0xf0, 0x0e, 0x00, 0x95, 0x00, 0x00, 0x00, 0xc2, 0x01, 0x00, (chk), 0x0d, 0x0a
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + message type (2B) + valid flag (1B) + CheckSum (1B) + packet
tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x01, 0x00, 0x95, 0x00, 0x03, (chk), 0x0d, 0x0a
(Status flags: 0 for invalid, 1 for unsupported, 2 for failure, 3 for success)
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E108-GN User Manual
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